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From: alanf@bruce.cs.monash.OZ.AE (Alan Grant Finlay)
Newsgroups: comp.lang.c
Subject: Re: FALSE and TRUE, (FALSE = -1 ?)
Message-ID: <3032@bruce.cs.monash.OZ.AE>
Date: 9 Sep 90 05:02:41 GMT
Organization: Monash Uni. Computer Science, Australia
Lines: 7

I prefer to use -1 to represent false in C.  This uses redundancy to decrease
the chance of an error when more than one bit is used.  Since you can't have
a one bit two's complement integer I should probably use ~0.

The ! operator in C is designed to allow either 1 or -1 as representing false.
It looks as though I am a minority voice but this certainly means performing
a<b tests for "booleans" is not a safe practice in C.